HoSt is specialised in waste to bioenergy or also known as waste-to-energy (WtE) or energy-from-waste (EfW) solutions and supplies proven sludge to energy digestion plants. Municipal wastewater treatment plant (WWTP) sludge treatment is often an energy-consuming waste management headache. With the sewage sludge treatment systems of HoSt, WWTPs have the potential to turn the plant into an energy provider.